/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.apache.flink.api.common.typeinfo.descriptor;

import org.apache.flink.annotation.Internal;
import org.apache.flink.api.common.typeinfo.TypeDescriptor;
import org.apache.flink.api.common.typeinfo.TypeInformation;
import org.apache.flink.api.java.typeutils.ValueTypeInfo;
import org.apache.flink.types.Value;

/**
 * Implementation of {@link TypeDescriptor} to create {@link ValueTypeInfo}. Note that this class is
 * initiated via reflection. So, changing its path or constructor will brake tests.
 *
 * @param <T> type for which {@link TypeInformation} is created.
 */
@Internal
public class ValueTypeDescriptorImpl<T extends Value> implements TypeDescriptor<T> {

    private final ValueTypeInfo<T> valueTypeInfo;

    public ValueTypeDescriptorImpl(TypeDescriptor<T> typeDescriptor) {
        this.valueTypeInfo = new ValueTypeInfo<>(typeDescriptor.getTypeClass());
    }

    public ValueTypeInfo<T> getValueTypeInfo() {
        return valueTypeInfo;
    }

    @Override
    public Class<T> getTypeClass() {
        return valueTypeInfo.getTypeClass();
    }

    @Override
    public String toString() {
        return "ValueTypeDescriptorImpl [valueTypeInfo=" + valueTypeInfo + "]";
    }
}
